Texas Instruments has added two new devices, the TMS320C5514 and TMS320C5515, to its low-power 16-bit digital signal processor (DSP) C5000 platform. Also available are two evaluation options including the full-featured TMDXEVM5515 evaluation module and the new low-cost TMDX5515EZDSP.
The new DSPs provide a 20% performance increase, up to 120 MHz, with higher integration to ease system level development. This allows designers to maintain low power levels while adding features such as additional encode and decode algorithms in voice, audio and portable communications applications, as well as more real-time diagnostics in medical end equipments. These devices also integrate power management features, such as on-chip LDOs (low-dropout regulators), as well as dynamic voltage and frequency scaling, so customers can maximise and efficiently manage battery life for portable devices.
The C5514 features three on-chip LDOs, one each for the DSP core, USB and analog subsystems. It includes SDRAM and mobile SDRAM support for power sensitive applications. The peripheral set includes high-speed USB 2.0, I²S, UART, SPI, MMC/SD and GPIOs. Up to 256 KB of on-chip memory saves both power and system cost by reducing the need for external memory, while dynamic voltage and frequency scaling help to maximise battery life in portable applications.
In addition to the C5515’s features, the C5515 offers an additional 64 KB on-chip memory (320 KB total), up to 1024-point programmable FFT hardware accelerator, integrated LCD display controller and 10-bit 4-channel SAR ADC. It is scalable and pin-compatible with the C5514.
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